Question

Q:Find the value of P for which the given points are collinear?​

Answer 1

Answer:

by centroid formula

Step-by-step explanation:

3+p+ ( -1 )/3

2/3

1.5

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Answer 2

Answer:

Correct option isC..1

For collinearity of points A(−1,3),B(2,p),C(5,−1), area of ΔABC should be zero ,i.,e 2,1

∣(p−1)+2(−1−3)+5(3−p)∣=0

⇒p−1−8+15−5p=0

⇒−6p+6=0

⇒−6p=−6

⇒p=1